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Relationship between femoroacetabular contact areas and hip position in the normal joint: an in vitro evaluation
Knee Surgery, Sports Traumatology, Arthroscopy, 08/08/2012
Signorelli C et al. – The results confirm the ability of the Hyperextension–External Rotation tests to particularly analyse the posterior region of the acetabulum. Placing the hip in 90° of Flexion–Adduction–Internal Rotation allows for testing a wider zone of the acetabulum and is not specific to abutment of the femoral head–neck region against the anterolateral acetabulum.